Gas-burner.



- I. E. CHAMBERS & J. M. MARTINr GAS BURNER.

APPucATioN FILED FEB.9.1915.

1,200,078.- 'Patented ont. 3,1916.

INDIANA, ASSIGNORS TO CHAMBERS MANUFACTURING COMPANY, OF SHELBY-- VILLE, INDIANA, A CORPORATION OF-' INDIANA.

GAS-BURNER.

p Application led February 9, 1915. Serial No. I7,088.

` To all whom t may concern Be it lmown that we, JOHN E. CHAMBERS and JAMES M. MARTIN, citizens of the United States, residing, respectively,I Iat Shelbyville, in the county of Shelby, State of Indiana, and Indianapolis, in the county` of Marion, State of Indiana, have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification, reference being had therein to th'e accompanying drawing.

This invention relates to gas burners for stoves, and the like, and has to deal, more particularly, with means for regulating the mixture delivered to the burner. In devices of this character, many attempts have been made to vary the quantity of air supplied for the mixing chamber, and it is one of the objects of the present invention to provide `novel and inexpensive means for this purpose, which said means, though simple inl construction, and-neat in design, is highly eflicient in use.

' In carrying out the invention, we preferably takel advantage of an extension of the v burner to constitute the mixing chamber, and

' apply directly to said extension a novel .type of air supply means, 4 readily adjustable at will, and preferably having means to retain the same in adjusted positions.

A further object of the invention is to provide, incombination, means fora regulating the air supply, and means for regulating the fuel supply, the said means being -operatively associated one with the other in a novel andimproved manner, while, at the same time independently adjustable at Will,

4without interference one with the other.

Novel details in the construction and arrangement'of the several parts will be appreciated from A'the description to follow, which, for a clearunderstanding of the invention, is tov be considered in connection with the accompanying drawings forming a part hereof, and wherein yis disclosed, for the purpose of' illustration, a convenient and satisfactory embodiment o-f the invention.

In they drawings: Figure 1 is a side elevation of a burner with our improvements applied; Fig. 2 is a plan View of the same, and

Figs. 3, 4, 5 and 6 are detail-views of the l air regulating means.A

With -more particular reference tothe drawings, wherein like reference numerals Patented oct. s, v191.6;

refer to corresponding parts throughout the several views,:a burner is provided, the same bemg preferably of integral construction and having a hollow tubular body portion 1, with radially extending hollow arms 2', the body portion and said arms being provided With closely associated outlet openings rotatablecut off valve 6 of anydesiredconstruction and adapted vto ,be operated through the `medium of aA handle 7. The

supply pipe 5 is adapted to be rigidly supported in any desired manner, and has a threaded portion 8 adjacent the end thereof. Projecting from the threaded end of the fuel supply pipe 5, is a suitable valve needle 9;l

said needle being supported fromthe supply pipe 5, so as to leave an open terminal for said pipe at the sides of said needle.

10is a cap interiorly threaded, at 11, so as to, engage the threads 8 of the fuel sup- 4ply pipe, the said, cap 10 having an outlet opening 12, adapted -to receive the pointed end of the valve 9 'and coperating with said valve to provide an adjustable outlet for the fuel, such as gas. Connected to the cap member 10 adjacent the rear end thereof is 'a suitable-collar 13, having a roughenedsurface whereby. to constitute a hand en aging f e adpart to th end that the cap may let passage. As stated, the fuel supply pipe is preferably rigidly supported in place with respect to the mixing chamber 4, and the outlet end of the fuel supply, provided by the cap 10, isA positioned Within the inlet end of the terminal of said extension 4.

In order to accurately regulate the amount of air supplied to the mixing chamber, we preferably 'provide a sleeve 14, having sepa- -justed at will to regulate the size of the outl the mixing chamber, which said inlet end is j provided by anunobstructedlopening 4, at

rated webs 15', adapted to connect withsaid I sleeve a cap shaped part v16. The cap-shaped part 16 has a substantially central opening 17 the wall surrounding said opening being Asleevedupon the adjustablecap 10, and the annular portion of'said cap member 16 is preferably roughened on its exterior surface to constitute hand engaging means.

rllhe interior surface of the sleeve 14 and g webs are threaded to correspond with the 'Ile gagement with the walls surrounding the apertures of the lugs, the bolt 2O having a slotted terminal 21 to be engaged lby a screw driver or the like. llt will be seen that by turning the bolt the end of the sleeve may be a@ brought into tight engagement with the wall 4 of the mixing chamber, and that by loosening the bolt'the sleeve 14 may be readily adjusted. l v

1n operation, it will be observed that the i operator may govern the supply of gas or other fuel by engaging the collar 13, and imparting radial movement thereto, whichv will relatively adj ust the outlet end of the cap and the valve 9. Also, when desired, to regse ulate the air supply, this may be readily accomplished by loosening the bolt 20, when the sleeve 14 may be rotated, the quantity of air admitted into the chamber being determined by the amount of separation between the cap portion 16 and end 4 of the mixing chamber. Should the sleeve 14 be adjusted inwardly to its limit, the annular portion of the cap 16 will overlie the smooth portion of the mixing chamber wall, and

e@ the disk part of said cap will contact with the end of the mixing chamber so as to entirely shut off the air. By providing the terminal of the mixing chamber with a reduced diameter 4b, lit will be appreciated e5 that the sleeve may be readily .assembled ,j

upon the Wall of the mixing chamber. Y

It will be appreciated from the description above that'the air and fuel adjustments may be accomplished independently of the 5e other and without interference one with the other by reason of the novel construction and coperative relation of theparts adapted for this urpose.

It will filrther be appreciated that the air adjusting sleeve is of such construction that the air will be admitted from all sides of the burner tube at once-that is to say, the inlet end of the burner tube is open e11-l tirely therearound, with the exception of the 60 relatively narrow Webs .of the adjusting sleeve, and these will not interfere noticeably with the inflow ofthe air at all Sides of the burner tube.

Obviously, if desired, the air regulating sleeves 14 may be continuous and devoid of 'income the slit 18, and means other than that illusjusted positions, and in this ,connection2 a locking nut 25 may bey utilized, the same bering sleeved upon the threaded burner exltension, and after the sleeve 14 has been properly adjusted, said nut 25 may be brought into locking contact with. the inner end of the sleeve 14 to thereby maintain the same against accidental displacement.

What we claim is 1. lin a device of the character described, a burner having a tubular extension yforming a mixing chamber, said extension being open at its outer end andvhaving a threaded periphery, a sleeve having an -interiorly threaded portion whereby to adjustably engage the threads of the wall of the mixing chamber, said sleeve having` at its outer end a' cap portion, said cap portion being connected to the sleeve by separated webs whereby to provide airl inlets communicating with the open Iend of the tubular extension, which said air inlets are regulated by the adjustment of the sleeve, and said cap having an opening for fuel 'or the like. i

2. ln a device of the character described, a burner having a tubular extension forming a mixing chamber, said extension being open at its outer end and having a threaded periphery, a sleeve having an interiorly threaded portion wherebyto adjustably engage the threads of the Walls in the mixing 'trated employed for locking the sleeve in adj chamber, said sleeve havin at its outer end a -cap portion overlying sal open end of the tubular extension, and said cap portion be ing connected to the sleeve by separated webs whereby to form separated air openings, the size of which is regulated by adjustment of said sleeve, said cap also having an opening for fuel or thelike, and a fuel supply pipe projecting through the cap opening, which said ca has a free sleeved engagement with said iiiel supply, pipe.

3. In a device of the character described,

a' burner, a tubular member connecting with the burner and having an opening at its aopposite'en'd for the admission of air and gas, means for regulating the supply of air fadmitted into said open end comprising a cap overlying said open end and having a threaded engagement with the periphery of the tubular member, said cap havlng peripheral openingscommunicating with the open end of the tubular member, the wall of the tubular member at its open end coperating with the openings in the cap to regulate the intake of air by the screw threaded adjustment of said cap, and said cap having an end opening for the admission of gas.

4. In a device of the kind described, a burner, a tubular mixing chamber projecting therefrom open at its outer end, the wall of said chamber being threaded upon its pe- ;riphery, and air supply means adapted to be directly applied to the wall of said chamber comprlsing a sleeve having a threaded interior wall adapted to engage the threads of the wall of the mixing chamber, said sleeve having an end with a fuel supply opening, and peripheral openings y adjacent to but spaced from said end whereby to constitute air inlets communicating with said open end of the tubular chamber, whereby upon longitudinal adjustment of the sleeve the size of the air intake into the tubular chamber is regulated, that portion ofthe sleeve adjacent its end being roughened to constitute hand engaging means whereby to adjust the sleeve relative to the mixing chamber. 1

5. In a device of the character described, the combination of a burner having a tubular mixing chamber with an open end, the wall of which latter has a threaded periphery, a longitudinally adjustable air supply sleeve havlng an opening at its side communicating with the open end of the tubular chamber, and being threaded to the wall of the mixing chamber, whereby the air intake may be adjusted, said sleeve having an apertured end, a fuel supply pipe having an outlet end passing through the opening in the end of said sleeve, a needle valve at the outlet end of said fuel supply, and an adjustable cap coperating with said valve to vary the fuel supply.

6. In a device of the character described, a burner, a tubular part having a threaded periphery, said tubular part having an open terminal, and air regulating means comprising a sleeve `threaded to correspond with the threads ofy the tubular part, said sleeve having an end with a fuel inlet opening and one or more side openings adjacent said end, and means for maintaining the sleeve in adjusted positions.

7. In a deviceof the character described, a burner, a tubular part having a threaded periphery, said tubular part having an open terminal, and air regulating means comprising a sleeve threaded tov corres ond with the threads of the tubular part, sald sleeve having an end with a fuel inlet vopening and one or more side openings adjacent said end, said sleeve having a slittedv portion, and means to engage the sleeve to force the same in holding contact with the wall of said tubular member.

8. In a device of the class-described, the

sleeve and thereby regulate the quantity of air admitted to the end opening of the mixing chamber, said cap having a gas lnlet opening, a gas conduit, a needle valve in thev conduit, and an adjustable cap threaded to said conduit and projecting through the cap of the mixing chamber and having an opening in registration with the terminal ofthe needle valve, substantially as and for the purpose described.

In testimony whereof, we have hereunto set our` signatures in the presence of two wit nesses.

JOHN E. CHAMBERS. JAMES M. MARTIN.

Witnesses:

lI'tU'rH UPDEGRAFF, C. A. OREBAUGH. 

